Has you wife serviced your friends

My wife fucked her brother's best friend. We were dating at the time. He wasn't really a friend of mine - just a guy I knew through him. He was married at the time and she fucked him to spite his wife, whom she hated with a burning passion. Said he was possibly the best fuck she's ever had, including me, and that she'd only done it that one time to "claim" him over his wife.